Hardiness

Up to date (as of 6.0.3)

• 
  
• Cleaned it up.
• 
  
• Added/removed abilites, talents and specializations.
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• Alphabetically sorted them as well.
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Stun effects reduction table:
(Stun reductions used: Hardiness, Powerful Primal Diamond & [spell=48266]*)

Sap (spell reads "Apply Aura: Stun", as such it is counted as a stun in terms of reductions, etc.)
8.0 seconds = Original duration
7.2 seconds = Hardiness / Powerful Primal Diamond
6.5 seconds = Hardiness + Powerful Primal Diamond
6.4 seconds = Frost Presence

Hammer of Justice & Kidney Shot
6.0 seconds = Original duration
5.4 seconds = Hardiness / Powerful Primal Diamond
4.9 seconds = Hardiness + Powerful Primal Diamond
4.8 seconds = Frost Presence

[spell=108194], [spell=44572], [spell=22570] & [spell=5211]
5.0 seconds = Original duration
4.5 seconds = Hardiness / Powerful Primal Diamond
4.1 seconds = Hardiness + Powerful Primal Diamond
4.0 seconds = Frost Presence

Cheap Shot, Fists of Fury, Gnaw (Pet) (As a level 70+ Unholy Death Knight), [spell=46968] & [spell=107570]
4.0 seconds = Original duration
3.6 seconds = Hardiness / Powerful Primal Diamond
3.2 seconds = Hardiness + Powerful Primal Diamond
3.1 seconds = Frost Presence

[spell=119392], Gnaw (Pet), Intimidation (Pet) & [spell=30283]
3.0 seconds = Original duration
2.7 seconds = Hardiness / Powerful Primal Diamond
2.4 seconds = Hardiness + Powerful Primal Diamond
2.4 seconds = Frost Presence

[spell=1122] & War Stomp
2.0 seconds = Original duration
1.8 seconds = Hardiness / Powerful Primal Diamond
1.6 seconds = Hardiness + Powerful Primal Diamond
1.6 seconds = Frost Presence

Charge (with [spell=103828])
1.5 seconds = Original duration
1.4 seconds = Hardiness / Powerful Primal Diamond
1.2 seconds = Hardiness + Powerful Primal Diamond
1.2 seconds = Frost Presence

Should be right. Correct me if wrong, or if I forgot something. Note that these are rounded numbers, so kindly don't nitpick about that.

PS. Didn't add Hunter pets with the talent Lionhearted because it's not related to the actual character and don't want to bloat this any more than necessary. You might disagree with me but, there you go. Anyway, Hunters, just multiply the original duration of the stun you want to know about with .7 (last rank) and you'll see how much reduction it gives.

Hopefully this helps a bit.

Yours truly,
*signs*

* = Frost Presence doesn't stack (according to spell details) but will be included for the sake of comparison and, in difference to Lionhearted, is at least connected to the actual character.

What the Nether would stun you for three minutes? I want that spell...

They must have changed it from 25% to 15%...I could have sworn it used to be 25% =P

Anyhow, this is the single most annoying racial for me as a Pally. HoJ doesnt effect them 20% of the time with this. Additionally, assuming they are an Orc Warrior they have a talent with increased resistance. Yeargh!

~Archangel